Multi-point magnetic valve position signal output device for nuclear safety electromagnetic globe valve

Abstract

The invention discloses a multi-point magnetic valve position signal output device of a nuclear safety-level electromagnetic stop valve. The multi-point magnetic valve position signal output device of the nuclear safety-level electromagnetic stop valve comprises a magnetic plate, a connecting base plate, a connecting plate, a static iron core, a signal pad, a signal rod, a signal bottom plate, a signal position regulating pad, a signal body, a reed pipe, a small housing, and an upper cover and a permanent magnet. The small housing is in thread connection with a main valve sleeve, and the joint is sealed through argon arc welding. The bottom end of the small housing is fixed on the static iron core of a main valve, the signal rod is mounted in the small housing, one end of the signal rod is connected with a movable iron core of the main valve while the other end is provided with the permanent magnet for triggering the reed pipe out of the housing. Two signal bodies are mounted at the outside of the small housing, and each signal body is provided with three reed pipes through pouring. One of the reed pipes in two signal bodies is mounted on the valve open position of the permanent magnet on the signal rod through the signal regulating pad while the other is mounted at the valve close position through the signal regulating pad. The multi-point magnetic valve position signal output device of the nuclear safety-level electromagnetic stop valve uses the advanced magnetic transmission technology and multi-point structure, so that the multi-point magnetic valve position signal output device of the nuclear safety-level electromagnetic stop valve is safe and reliable, is small in volume, is light in weight and is high in corrosion resistance and radiation resistance.

Description

technical field [0001] The invention relates to the technology of an electromagnetic stop valve, in particular to a multi-point magnetic valve position signal output device for a nuclear safety level electromagnetic stop valve. Background technique [0002] Electromagnetic globe valve is an important pipeline accessory widely used in pipeline systems and control systems in nuclear power, petrochemical and metallurgical fields. It is used to control the connection, blocking or reversing of pipeline media. Compared with other types of valves, the electromagnetic globe valve has the biggest advantage of no leakage. It seals all the moving parts in the pressure-bearing shell, while ensuring no leakage, it also brings the possibility of not being able to move the valve core. The opening and closing positions are directly fed back to the outside of the pressure housing, and the real valve position cannot be monitored. With the development of science and technology, the improvemen...

AI Technical Summary

Problems solved by technology

Compared with other types of valves, the electromagnetic globe valve has the biggest advantage of no leakage. It seals all the moving parts in the pressure-bearing shell, while ensuring no leakage, it also brings the possibility of not being able to move the valve core. The open and close positions are directly fed back to the outside of the pressure shell, and the real valve position cannot be monitored

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